Section 3: Indicator 2 (Questions 10-18)
Questions in this section are for quantifying Indicator 2, and will
inform the section on Indicator 1 by stipulating the number of
populations you will be asked to complete with respect to population
name and size.
Q10 is asking about the number of known extinct populations within the
country! In other words, the total number of known historic populations
in the country! Ideally, the assessor will find details of extinct
populations in the reports, databases, or experts s/he is consulting.
This may come in the form of a list or map(s). An integer count (e.g.,
1, 2) can therefore be reported. If the number of extinct populations isUnknown , please type -999 .
Given that we are assessing human-induced changes in species’ genetic
diversity and structure, 50-200 years ago can be used as the
historic/prior baseline for which to compare population numbers. This
timeline reflects the industrial era and rapid habitat change in many
countries. However, it is acknowledged that baselines might vary by
country depending on human impact/ growth and even depending on species
type (e.g. earlier hunting of large mammals). As such, it is the choice
of the in-country assessor as to what is appropriate, and is somewhat
dependent on the data available in records. Please record the date of
the baseline/historic structure that you are referring to when counting
populations (Q11). This could allow for interesting temporal comparisons
during downstream analyses (e.g., ‘pre industrial’ [1700s], ‘great
acceleration’ [1950s], initiation of the CBD [1993], the start
of this decade [2020]).